LIFE HISTORY OF CODLING MOTH IN PECOS VALLEY, N. MEX. 75 



THIRD BROOD OF MOTHS. 



Time of emergence. — Because of a slight overlapping of the periods 

 of emergence of moths of the second and third broods transforming 

 from larvae collected from banded trees in orchards, the records 

 showing the time of emergence of moths of the two broods are con- 

 solidated and appear in Table LV. 



The data show the first emergence of moths of the second genera- 

 tion to have occurred July 6, and a maximum number of moths of 

 this brood to have appeared on August 6, or practically one month 

 later. Emergence continued quite irregularly until September 19, 

 although moths of the third brood apparently reached a maximum of 

 emergence on August 28. The variations in the periods of emergence 

 of the two broods shown by means of curves appear in figure 10, and 

 illustrate very concisely the features of the periods and the time of 

 occurrence. 



Table LV. 



Time of emergence of codling moths of the second and third broods, Roswell, 

 N. Mex., 1913. 



Date of emergence. 



Number 



of 

 moths. 



Date of emergence. 



Number 



of 



moths. 



July 6 



1 



18 



20 



34 



24 



52 



34 



35 



56 



31 



40 



54 



40 



98 



97 



47 



88 



157 



201 



125 



260 



331 



420 



297 



431 



457 



404 



399 



362 



473 



411 



475 



409 



401 



329 



301 



250 



134 



Aug. 13. 



151 

 146 

 96 

 112 

 115 

 97 

 109 

 59 

 52 

 74 

 40 

 33 

 60 

 29 

 42 

 57 

 47 

 28 

 36 

 47 

 28 

 19 

 22 

 15 

 19 

 20 

 18 

 20 

 11 

 10 

 2 

 4 

 7 

 8 

 3 

 1 

 2 



7 



14 



8 



15 



9 



16. . 



io: 



17. 



u 



18. 



12 



19 . 



13 



20 



14 



21. 



15 



22 



16 



23 



17 



24. 



18 



25 



19 



26 



20 



27. 



21 



28 



22 



29. 



23 



30 



24 



31 



25 



Sept. 1 



26 



2 



27 



3 



28 



4 



29 



5 



30 



6 



31 



7 



Aug. 1 



8 



2 



9 



3 



10 



4 



11 



5 



12 



6 



13 



7 



14 



8 



15 



9 



16 



10 



17 



11 



19 



12 







SUMMARY OP RECORDS. 



In Table LVI may be found a comparatively complete summary of 

 records on the several stages of the life cycle of the codling moth of 



